Large-area, lithography-free, low-cost SERS sensor with good flexibility and high performance

Jing Jiang; Zhida Xu; Abid Ameen; Fei Ding; Guohong Lin; Gang Logan Liu

doi:10.1088/0957-4484/27/38/385205

Large-area, lithography-free, low-cost SERS sensor with good flexibility and high performance

Jing Jiang, Zhida Xu, Abid Ameen, Fei Ding, Guohong Lin, Gang Logan Liu

Research output: Contribution to journal › Article › peer-review

Abstract

Cost-effective, sensitive and bio-compatible surface-enhanced Raman spectroscopy (SERS) substrate has been in high demand since the Raman spectrum was designated as a significant tool for analyzing the composition of liquids, gases and solids in 1998 [1]. In this research, we presented the design, fabrication and characterization of an improved gold-based SERS substrate. With fine tuning of the SiO₂ thickness we achieved a 3.391 times improvement and achieved an enhancement factor of 1.55 ∗ 10⁷ which is 15 times better than the current gold-standard Klarite substrate. Such improvement is ascribed to the localized surface plasmon resonance (SPR) and propagating SPR, which is proved by full-wave finite-difference time-domain simulations.

Original language	English (US)
Article number	385205
Journal	Nanotechnology
Volume	27
Issue number	38
DOIs	https://doi.org/10.1088/0957-4484/27/38/385205
State	Published - Aug 19 2016

Keywords

FDTD simulation
localized surface plasmon resonance
nano-mushroom
surface plasmon resonance
surface-enhanced Raman spectroscopy

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

Online availability

10.1088/0957-4484/27/38/385205

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title = "Large-area, lithography-free, low-cost SERS sensor with good flexibility and high performance",

abstract = "Cost-effective, sensitive and bio-compatible surface-enhanced Raman spectroscopy (SERS) substrate has been in high demand since the Raman spectrum was designated as a significant tool for analyzing the composition of liquids, gases and solids in 1998 [1]. In this research, we presented the design, fabrication and characterization of an improved gold-based SERS substrate. With fine tuning of the SiO2 thickness we achieved a 3.391 times improvement and achieved an enhancement factor of 1.55 ∗ 107 which is 15 times better than the current gold-standard Klarite substrate. Such improvement is ascribed to the localized surface plasmon resonance (SPR) and propagating SPR, which is proved by full-wave finite-difference time-domain simulations.",

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AU - Jiang, Jing

AU - Xu, Zhida

AU - Ameen, Abid

AU - Ding, Fei

AU - Lin, Guohong

AU - Liu, Gang Logan

PY - 2016/8/19

Y1 - 2016/8/19

N2 - Cost-effective, sensitive and bio-compatible surface-enhanced Raman spectroscopy (SERS) substrate has been in high demand since the Raman spectrum was designated as a significant tool for analyzing the composition of liquids, gases and solids in 1998 [1]. In this research, we presented the design, fabrication and characterization of an improved gold-based SERS substrate. With fine tuning of the SiO2 thickness we achieved a 3.391 times improvement and achieved an enhancement factor of 1.55 ∗ 107 which is 15 times better than the current gold-standard Klarite substrate. Such improvement is ascribed to the localized surface plasmon resonance (SPR) and propagating SPR, which is proved by full-wave finite-difference time-domain simulations.

AB - Cost-effective, sensitive and bio-compatible surface-enhanced Raman spectroscopy (SERS) substrate has been in high demand since the Raman spectrum was designated as a significant tool for analyzing the composition of liquids, gases and solids in 1998 [1]. In this research, we presented the design, fabrication and characterization of an improved gold-based SERS substrate. With fine tuning of the SiO2 thickness we achieved a 3.391 times improvement and achieved an enhancement factor of 1.55 ∗ 107 which is 15 times better than the current gold-standard Klarite substrate. Such improvement is ascribed to the localized surface plasmon resonance (SPR) and propagating SPR, which is proved by full-wave finite-difference time-domain simulations.

KW - FDTD simulation

KW - localized surface plasmon resonance

KW - nano-mushroom

KW - surface plasmon resonance

KW - surface-enhanced Raman spectroscopy

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Large-area, lithography-free, low-cost SERS sensor with good flexibility and high performance

Abstract

Keywords

ASJC Scopus subject areas

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